 | | Journal (article/letter/editorial) | | FROM THE ONVERWACHT AND TWEEFONTEIN ULTRAMAFIC PIPES, EASTERN BUSHVELD COMPLEX, SOUTH AFRICA FEDERICA...Witwatersrand, PO Wits 2050, South Africa ABSTRACT The ultramafic pipes of Onverwacht and Tweefontein, in the...the eastern part of the Bushveld Complex, in South Africa, contain small xenoliths of chromitite that...ruthenium) and RhâPdâRu arsenides (cherepanovite, ruthenarsenite, rhodarsenide, and palladodymite or palladoarsenide...Complex, Republic of South Africa. SOMMAIRE Les pipes ultramafiques de Onverwacht et Tweefontein, dans |  | | Journal (article/letter/editorial) | | PLATINUM-GROUP MINERALS FROM THE BUSHVELD COMPLEX, SOUTH AFRICA T. OBERTHĂR Bundesanstalt fĂŒr Geowissenschaften...ac.at © 2014 December Geological Society of South Africa ABSTRACT The present work provides an initial...Complex, and from eluvial concentrations at the Onverwacht platiniferous pipe. During a field campaign,...transport. The eluvial material collected at Onverwacht contained ca. 150 PGM grains with sizes mainly...PGM assemblage described previously from the Onverwacht pipe proper, including the type locality minerals |  | | Report (issue) | | Ruthenarsenite (Ru, Ni)As c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Orthorhombic...Pd0.03 Os0.02 )ÎŁ=1.05 As0.95 . (2) Onverwacht mine, South Africa; by electron microprobe, corresponding...China. In the Onverwacht mine, on the Merensky Reef, Bushveld complex, Transvaal, South Africa. Name: For...Canada. References: (1) Harris, D.C. (1974) Ruthenarsenite and iridarsenite, two new minerals from the |  | Oberthur, T., Melcher, F., Gast, L., Wohrl, C., Lodziak, J. (2004) DETRITAL PLATINUM-GROUP MINERALS IN RIVERS DRAINING THE EASTERN BUSHVELD COMPLEX, SOUTH AFRICA. The Canadian Mineralogist, 42 (2) 563-582 doi:10.2113/gscanmin.42.2.563 | Journal (article/letter/editorial) | | RIVERS DRAINING THE EASTERN BUSHVELD COMPLEX, SOUTH AFRICA THOMAS OBERTHĂR§, FRANK MELCHER, LOTHAR GAST...placer, Maandagshoek, eastern Bushveld Complex, South Africa. SOMMAIRE Lors de nos campagnes de terrain...between 2 and 3 km wide and runs approximately northâsouth, subparallel to the layering of the Mafic Phase...underlain by the Critical Zone. Between the Atok mine and Steelpoort (Fig. 2), the layered sequence dips 10â15°...Maandagshoek (Fig. 2). Accordingly, both a north- and a south-flowing Moopetsi River are present. In the area |  | | Report (issue) | | SURVEY OF SOUTH AFRICA COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA MINERALOGY OF SOUTH AFRICA:... COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA Scientific Editor R.D. Dixon Linguistic and...Council for Geoscience (Geological Survey of South Africa), 280 Pretoria Street, Silverton, Pretoria or........................... 69 5.1 Overview of South African Occurrences ..............................LAYEREDSUITE,BUSHVELDCOMPLEX.... 111 MINERALOGY OF SOUTH AFRICA: TYPE-MINERAL SPECIES AND TYPE-MINERAL NAMES |  | | Report (issue) | | 161(2) Z=8 X-ray Powder Pattern: Onverwacht mine, South Africa. 2.265 (100), 3.020 (90), 1.934 (60)...3.41 38.96 Total 100.64 99.47 (1) Onverwacht mine, South Africa; by electron microprobe, corresponds...platarsite, ruthenarsenite, stibiopalladinite, mertieite-II, PtâFe alloy, chromite (Onverwacht mine, South Africa);...Distribution: In South Africa, in the Merensky Reef, Bushveld complex, Transvaal, at the Onverwacht [TL] and...SzymanÌski (1977) Platinum group minerals from Onverwacht. III. Genkinite, (Pt, Pd)4 Sb3 , a new mineral |  | | Report (issue) | | 790(1) Z=4 X-ray Powder Pattern: Onverwacht mine, South Africa; all reflections broad. 1.746 (100)...2 10.7 Total 99.98 100.2 98.9 (1) Onverwacht mine, South Africa; by electron microprobe, corresponding...)ÎŁ=0.98 As1.15 S0.86 . (3) Western Platinum mine, South Africa; by electron microprobe, corresponding to...in placers. Association: Stibiopalladinite, ruthenarsenite, mertieite-II, genkinite, PtâFeâCuâNi alloys...alloys, bornite, chromite. Distribution: From the Onverwacht [TL], Driekop, Union, and Western Platinum mines |  | | Report (issue) | | = 5.777 Z=1 X-ray Powder Pattern: Onverwacht mine, South Africa. 3.32 (100), 2.87 (100), 1.74 (100)...11.47 Total 98.3 98.7 100.42 (1) Driekop mine, South Africa; by electron microprobe, corresponding to...Occurrence: In chromite in hortonolite dunite (South Africa); as inclusions in chrompicotites (Bulgaria);...hollingworthite, sperrylite, laurite, iridarsenite, ruthenarsenite, rutheniridosmine, chalcopyrite, chalcocite...Distribution: In South Africa, in the Merensky Reef, Bushveld complex, Transvaal, from the Onverwacht [TL] and |  | | Report (issue) | | (Sb2.46 As0.54 )ÎŁ=3.00 . (2) Tweefontein Farm, South Africa; by electron microprobe, corresponding to (Pd7...)ÎŁ=8.02 (Sb2.67 As0.30 Sn0.03 )ÎŁ=3.00 . (3) Oktyabr mine, Russia; by electron microprobe, corresponding to...(Oktyabr mine, Russia). Association: Gold, sperrylite, laurite, platarsite, ruthenarsenite, mertieite-I...and at the Onverwacht mine, in the Merensky Reef, Bushveld complex, Transvaal, South Africa. From the...the Oktyabr mine, Norilâsk area, western Siberia, and around Zlatoust, Ural Mountains, Russia. At Hopeâs |  | | Journal (article/letter/editorial) | | concentrates originating from the Driekop platinum mine, South Africa, collected and first described by E. F. Stumpfl...interpretation of Rudashvesky et al. (1992) for the Onverwacht and Mooihoek pipes: a high-temperature magmatic...of discovery are summarize d in Table 1. The Onverwacht platiniferous pipe is the type locality of tetraferroplatinum...crosscutting the Upper Critical Zone, and the Onverwacht and Twyfelaar pipes in the Lower Critical and...(Driekop, Mooihoek), or by magnesian harzburgite (Onverwacht, Twyfelaar). The PGE mineralization is concentrated |  | | Journal (article/letter/editorial) | | Applied Geology, University of Natal, Durban, South Africa With 4 Figures Received February 2, 1996; accepted...Rustenburgite - - 28.28 [83.15] - - Ruthenarsenite 5.5 2.1 2.0 1.5 27.4 [57.59] Rutheniridosmine...ruthenium (Harris, 1974); up to 27.4 wt% Rh in ruthenarsenite (Cabri and Laflamme, 1981). Compositional...thanks the Foundation for Research Development (South Africa) for continued support. We would like to express...Marchukova 1D (1959) Applications of the method of local X-ray spectrographic analysis to the study of minerals |  | | Journal (article/letter/editorial) | | V:SE Borneo ($tumpfl 8, Torkian 1973) lII : Driekop Mine, Bushveld (TorkianÂą$tumpf11975 I l,]I; $orashigawo... was discovered as a new mineral in the Driekop Mine, Transvaal by Stumpfl and Clark (1965). Genkin et...(1966) described the Ir member, irarsite, from Onverwacht, Transvaal. In the past twenty years members...mineral at Onverwacht (Cabri et al. 1977). It was also found in the Merensky Reef, at the Union Mine (one analysis;...Rh-rich platarsite (with Ru > Ir a t . ~ ) from Onverwacht the new analyses of the Merensky Reef platarsite |  | | Journal (article/letter/editorial) | | 2Vo. 25.0,28.1, 6.1-12.0;640 The name is for the mine. Type material is preservedat the changesat 620...long) on ludwigiteand magnetiteskarnsin the iron mine of Brosso,Provinceof Torino, Piedmont,Italy. The...MINERAL The nameis for the district,Canavese, in which the villageand mine of Brossooccur. Type materialis... zonedpegmatitesin the Tanco mine,BernicLake,Manitoba,and the Hugo mine,Keystone,SouthDakota.It occursassmallgrains...3}and n{180}.It occursin veinsof the Bambollita mine near Moctezuma,Sonora, Mexico, associated with electrum |  | | Journal (article/letter/editorial) | | Laurite from the Merensky Reef, Bushveld Complex, South Africa: âHydrothermalâ in Origin? Federica Zaccarini...Merensky Reef of the Bushveld layered intrusion, South Africa. The zoned laurite forms relatively large crystals...characterized by an unusual zoning that involves local enrichment of As, Pt, Ir, and Fe. Comparison in...minerals (PGM); Merensky Reef; Bushveld Complex; South Africa 1. Introduction Minerals of ruthenium are very...Os)As2 , laurite (Ru,Os)S2 , ruarsite RuAsS, ruthenarsenite (Ru,Ni)As, and ruthenium (Ru,Ir,Os), have been |  | | Journal (article/letter/editorial) | | Stewart, J.M.: Platinum group minerals from Onverwacht. II. Plataroite, a new sulfarsenide of platinum...minerals in the chromitites of the Kokkinorotsos chrome mine, Cyprus. In: Panayiotou, A. (ed.) Proceedings of...Survey, Keyworth, 116 pp (1985) Harris, D.C.: Ruthenarsenite and iildarsenite, two new minerals from the...E.F.: Platinum Mineralogy of the Driekop Mine, South Africa. Mineral Deposita 10:71-85 (1975) Tarkian |  | | Book (edition) | | Mineral Descriptions Molybdenite in Graphite; Bogala Mine, Sri Lanka 51 Copper, native Synonym(s): Cuivre...grey); North Mine (North Broken Hill Mine; NBH Mine), Broken Hill, Yancowinna Co., New South Wales, Australia;...vein in jasper (red internal reflections); Madenköy Mine, Ăayeli, Rize Province, Black Sea Region, Turkey...argentite reaction rim (greenish grey; arg); Monte Narba Mine, San Vito, Cagliari Province, Sardinia, Italy; PPL...matrix (dark grey); HimmelsfĂŒrst Mine, Brand-Erbisdorf, Freiberg District, Erzgebirge, Sachsen, Germany |  | | Report (volume) | | in Magnetic Concentrates from the· Goodnews Bay District, Alaska By SAM ROSENBLUM, R. R. CARLSON, j. M...in magnetic concentrates from the Goodnews Bay district, Alaska. (U.S. Geological Survey Bulletin ; 1660)...southwestern Alaska showing location of Goodnews Bay district 3 Photograph of the Kevex screen showing the results...different groups of samples from the Goodnews Bay district 23 SEM micrograph of the lower left part of figure...preliminary magnetic concentrates from the Goodnews Bay district, Alaska 6 Results of semiquantitative spectrographic |  | | Journal (issue) | | Twenty-three, Number Three Âź Articles Gold in South Africa ..............................................Cairncross & C. R. Anhaeusser Minerals of the Linwood mine, Scott County, Iowa ............. 231 by P. L. Garvin...and this must have introduced him to many other local mineral collectors and possibilities for further...of this typically natrolite covered material for local dealers as well as himself. He used much of this...in the still open underground workings of the Gem mine. He encountered an open pocket containing well formed | | | Journal (issue) | | Mowry Place Tucson, AZ 85741 Articles Gold in South Africa ..............................................Cairncross & C. R. Anhaeusser Minerals of the Linwood mine, Scott County,Iowa ..................... 231 by...and this must have introduced him to many other local mineral collectors and pos sibilities for further...of this typically natrolite covered material for local dealers as well as himself. He used much of this...in the still open underground workings of the Gem mine. He encountered an open pocket containing well formed |  | | Report (issue) | | Platinum Symposium in Rustenburg, Republic of South Africa. The abstract volume for this meeting contained...mineralization, in countries like the Republic of South Africa, Canada, and Finland. Over the last five or...platinum-group minerals (PGM) beginning with a South African publication (Cabri, 1972) and culminating...of PGE deposits, ranging from the very important South African deposits to less well-developed PGE mineralization...of South Africa Lyndon, Washington College Park, Maryland Johannesburg, Republic of South Africa Kansas |  | | Report (issue) | | ore. Both actual size. A2 A. AB Reef, Denison Mine, Elliot Lake, Ontario. (Samples courtesy of V. Ruzicka...Leader Reef, about 1500 m depth, Blyvooruitzicht Gold Mine, Carletonville, Witwatersrand. (Sample courtesy...courtesy of D. K. Hallbauer, Chamber of Mines of South Africa ; radioluxograph by David M. Watson, Geological...Grandstaff. Discussion. South Africa: D. Uraniferous quartz-pebble conglomerates in South Africa, by J. W. von...model on the Kaap-Vaal craton, Witwatersrand, South Africa, by W. E. L. Minter. Discussion. F. The Dominion |  | | Book | | into Placers: Case Studies Bushveld Complex, South Africa, and Great Dyke, Zimbabwe Reprinted from: Minerals...Occurrence and description of PGM from China, Russia, South Africa, USA, and Zimbabwe are reported. In his contribution...assemblages indicate the presence of an oxygenated local environment leading to Fe-bearing RuâOs oxide and...ite vein-disseminated ores from the Komsomolsky mine of the Talnakh and Oktyabrsk deposits, Norilâsk...into placers: Case studies bushveld complex, South Africa, and Great Dyke, Zimbabwe. Minerals 2018, 8 |  | | Book | | England Thomas Nelson Australia 102 Dodds Street South Melbourne 3205 Victoria, Australia Nelson Canada...tried to retain local names for subdivisions within a given country. For some local names the anglicized...given name is included in parentheses although most local names lack this designation. For example we use...K(U02)As04*3H20, Tet. Vitreous yellow. Fuemrole mine, Temple Mt., Emery Co., Utah, USA. H= 2-3, Djjj=...grey, bluish-grey, yellow, light green. Langban mine, Filipstad (near), Varmland, Sweden. H= 5, Djjj=3 |  | | Book | | Mots inc. Native Gold on Quartz, Paymaster mine, South Porcupine, Ontario / Photo by Brian Boyle. Courtesy...Marquis imprimeur inc. Barite on Quartz, Rock Candy mine, Grand Forks, British Columbia / Photo by Ken Mayer...Mayer Publisher Pyromorphite, Society Girl mine, Moyie, British Columbia / Photo by Ken Mayer Mineralogical... Ontario Canada Diopside on Grossular, Jeffrey mine, Asbestos, Quebec / Photo by Jeffrey A. Scovil...including amateur col- lectors, company executives, mine owners, and vari- in the appropriate position. |  | | Book | | Al)16O34(Cl,SO4,CO3)4.0-6H2O, from a lapis-lazuli mine, Sar-e-Sang, Badakshan province, Afghanistan. The...colourless, monoclinic crystals from Kimberley, South Africa. Named after Mr. Alpheus Fuller Williams, of...Greenish-blue hexagonal crystals from the Bou-Skour copper mine, Jebel Sarhro,* Ouazazate,* Morocco, have the composition...270. Natural /1-FeOOH, occurring at the Akagane mine, Iwate prefecture, Japan, and named from the locality...United States, for 1913, 1914, part ii, p. 652.) Local trade-name, used by Mr. Joseph Ward, of Barstow |
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